In case no one has seen my question , I wanted to ask
I have 1 noob question , can zx1 or DAPs in general improve soundstage and imaging of mid-range iems , like RHA MA750 or DN-1000 for example , if not what else can they improve ? Is it hard to notice ?

In case no one has seen my question , I wanted to ask
I have 1 noob question , can zx1 or DAPs in general improve soundstage and imaging of mid-range iems , like RHA MA750 or DN-1000 for example , if not what else can they improve ? Is it hard to notice ?

Mid-range IEM's will sound their best with a great source. It doesn't improve it so much as bring out it's potential. You can also get the same sound from using a decent portable amp with a cheaper DAP.

Nice find (just realize you had just created an account when you posted , are you trying to sell it ) , totally customizable ! Especially attractive that it ships to my country for free hurray ! ..if only I were a fan of leather (or that blue alligator leather texture didn't hurt my eyes so badly ) I'm sure other here will appreciate the ability to change the case to their liking though

The thing is , I'm pretty sure this is clearly an imitation design of this product (different brand name, similar design) ZX1 leather case .
Judging by looking at the design , the back of the Chinese case is not as hard as that of one in Japanese site because the former is of 1 single layer and very thin , the latter is of 2 and looks solid , thick and not easy to be bent or changed shape/form . But I think it might not me such a problem , the point of both case is not to be dropped since there is a loop or clip in the back to attach to your belt/trousers . The price on the other hand is not really reasonable as I have seen many similar material cases made in my country are less or more that half that price (also custom-made)
Just for reference http://www.casauthanhvinh.com/san-pham/bao-da/bao-dien-thoai-da-ca-sau
most is about $28 (No one ships these oversea so I'm not advertising here)

In case no one has seen my question , I wanted to ask
I have 1 noob question , can zx1 or DAPs in general improve soundstage and imaging of mid-range iems , like RHA MA750 or DN-1000 for example , if not what else can they improve ? Is it hard to notice ?

As an example, I just did an X5 review where I compared sound quality paired with my NT6pro CIEMs, TF10s, and Monster Coppers. What I found is that the X5 paired with some better than others given its signature and power rating so the pairing is important. However in all cases, the CIEMs/IEMs sounded better than I had heard before with my DX50/Clip/C3/Apple/etc, but the CIEMs had the most headroom to show the most improvement and take full advantage of the X5 capabilities. Overall, the X5 was good enough that the lesser IEMs - although sounding better than ever before - held back the full X5 capabilities. This is a benefit though as you can upgrade your headphones and not be held back by the DAP. If you want to see the details, my review is at: http://www.head-fi.org/products/fiio-x5-high-res-portable-music-player/reviews/10579.

With the ZX1, I would be most concerned with the weaker internal amp. It will probably pair better with highly efficient IEMs like my Monster Coppers vs. my power hungry NT6pro. The efficient JH16s would probably be a wonderful CIEM stand alone pairing. The beautiful form factor and ergonomics of the ZX1 goes away if you have to strap an ugly external amp to it with a bunch of wires popping out.

But my ears tell me that it's very well implemented EQ. It sounds really good. I use it and it really improves the quality IMHO.

I agree that it's quite good. It does add way too much bass for my already quite bassy Heir 5.0's for my liking.... but the extra headstage it adds is kind of addictive. I turn it on every now and again when I want my head to be blasted for a bit